Closure for collapsible tubes



. May. 20, 1930. EL, POHL 1 41,759,206

CLOSURE FOR COLLAPSIBLE TUBES Filed Feb. 17, 1927 7 my.omzsrmmmi61'3:

INVENTOR.

EDWIN L. Pam

v ATTORNEY.

Patented May 20, 1930 A UNITED STATES PATENT OFFICE.

Enwm 1.. IPOHL, or ammonia, WISCONSIN CLOSURE FOR GOLLAPSIBLE Tunas Application filed February 17, 1927. Serial No. 168,889.

This invention relates to closures for 001- In the drawings lapsi'ble tubes which are in common use for Figure 1 is an elevational view of a colcontaining and dispensing toilet creams, lapsible tube provided with a closure of the pastes, artists paints, salves and the like. present invention. The types of such containers now most Fig. 2 is an enlarged side elevational view 55 prevalent in use are provided with a threaded of a portion of the tube. nipple and a threaded cap or closure which is Fig. 3 is a sectional view taken on the line wholly removable from the container. The 3-3 of Figure 2. v particular disadvantage to this type of clo- Fig. 4 is an elevational view of the closure sure is the ever prevalent danger-of loss or with the retaining wire shown in its normal 60 misplacement of the cap'thus leaving the conposition before being attached to the neck tents of the tube open to dust laden air which of the tube. i in many instances renders the paste, paint, or In an illustrative embodiment of the prescream unfit for further use. ent invention a collapsible tube 1 is provided In an endeavor to eliminate the foregoing with a neck portion 2 adapted to be received 66 difliculty numerous attempts have been made in a socket 3 of aclosure cap 4. A suitable to anchor the closure cap to the tube, and all insert f cork or similar material is posi have terminated in the addition of lugs to the tioned in the socket 3 and serves as a seal for a body of the tube, specially designed caps and mouth 6 of the tube. The closure 4: is prowire connections between the two elements. vided with an enlarged head 7 which may be 7 In every instance the complications accomknurled or suitably shaped to offer an eiiecpanying the anchoring of the closure cap have tive means for lifting the closure to permit proven costly, cumbersome or wholly imits ready replacement on the tube. An anpracticable when they have been subjected to nular groove 8 is provided beneath the head any extended use. 7 of the closure. A retaining means such as The primary object of this invention is to a wire 9 is positioned in the groove 8 and bent 1 provide a closure for collapsible tubes which upon itself to effect a permanent attachment may readily be removed from its sealing poof said retaining means to the closure. The sition on the tube to permit the dispensing of. retaining wire 9 is then deformed into a pa r the contents thereof, and yet remain fixed to of resilient depending arms 10 whose ex 8 the tube to insure against its loss or mistremit-ies 11 may be inserted into suitable placement. sockets 12 in the neck portion 2 of the tube. A further object lies in the novel construc- The retaining means such as a wire having tion whereb the necessity'of a threaded resilient portions is fixed to the closure as nipple and c osure have been eliminated and above described and the resilient depending also the sliding engagement between the do arms will normally lie in the position as insure and retaining means which was subjected dicated in Figure 4 of the drawing. It Wlll to considerable strain and found lacking readily be seen that in order to positlon the where a Wire retaining means was heretofore closure onto the neck portion of the tube it U dwill be necessary to spread the extrenntles of A further object is the simplicity of the the bowed arms to permit their insertlon into present invention and the exceedingly low. the sockets of the neck portion. Hence when cost of manufacture, obtained by'the 'eliminathey are so positioned there will bean 111- tion of elements such as threads, special anherent tendency for the flexed portions to choring means and sliding connections which exert a downward pressure on the closure and have hitherto been deemed essential. 4 thus impart a pressure through the medium Other objects and advantages will be obof the insert 5 to effect a pos1t1ve seal on the vious from the following description of an ilmouth of the tube. v

lustrative embodiment of the present inven- To relieve this tendency and remove the tion. closure from the tube to permit dlspensing of the contents thereof, it becomes necessary only to grasp the tube in the usual manner applying the thumb to one of the resilient bowed armsand the index finger to the other bowed arms. By exerting a slight pressure .on these two arms they will be deformed in such a manner as to efiect a rising movement "of the closure,'said rising movement of the only to .swing the closure about the axis formed by the ends of the bowed arms 11 in mit the closure to be s sure as it is constantly fixed to the neck of j the sockets 12 of the neck to displace it a sufficient amount to permit dispensing of the contents of the tube without interference with the closure.

To replace the cap, after a suitable amount of the contents of the tube have been discharged, it becomes necessary only to grasp the enlarged portion 7 of the closure 4 and exert a slight pull on the same to again deform the resilient arms 10 in order to pervung into a vertical position over the mout 6 of the tube. When the closure is in this position, by releasing ones hold on it, the resilient arms. 10 will force the closure onto the neck portion of the tube, thus insuring sealingof the mouth 6 by the inset 5 in the socket 3 of the cover portion.

It will readily be seen from the foregoing description that a closure for callapsible tubes has been provided in an inexpensive and .serviceable manner. There being only one portion, namely, the resilient retaining 'means in addition to the elements normally required for containers of this type. In ad- While the application of a closure for collapsible tubes has been described in considerable detail inthe foregoing specification, it

will be understood that changes may be made in the construction of the same within the limits hereinafter claimed, without departing from the spirit of the invention.

I claim:

1. A collapsible container having an apertured discharge neck, a cap cooperating therewith to close the same, and a pair'of reslhent links connecting said container and cap and normally applying a closing presand deformable under lateral pressure to lift said cap from said'neck.

In Witness-whereof, I hereunto subscribe my name this 15th day ofFebruary, 1927.

* EDWIN L. POHL.

dition to accomplishing the desired end the cost of manufacture of the article described in the foregoing specification has been greatly reduced and a material saving has been accomplished by the elimination of threads on the neck portion of the tube and the closure, together with the elimination of special anchoring means which have hitherto been deemed essential in prior-attempts to accomplish the same end as recited 1n the foregoing specification. 7

It will also be seen that the closure herein described lends itself readily to the use to which articles of this class are subjected; namely, the frequent removal and repositioning of the closureupon the tube, as there are no elements which will become permanently deformed by frequent use nor is there any possibility of loss or misplacement of the 010- the tube by means of the resilient arms.

The ease .of manipulation, the low cost of manufacture, and the simplicity of the device all lend themselves. to the accomplishment of the desired end,' na'mely, the provision of a closure for colla readily be removed from its sealing osition without removalofthe samefrom t e tube.

psible tubes which may pressure to lift said cap from said 

